[Leica] Re: new M8 IR filter report

[henningw at archiphoto.com (Henning Wulff)]

>Good eye, Henning.  I was wondering why the upper picture of the 
>model had a redder face when Erwin said it was taken with the 
>filter.  Then I looked at the turtleneck. Oops. :-)
>
>I'm also surprised that he hasn't noticed that IR sometimes blurs 
>IR-reflecting things at the point of focus (even Leica mentions 
>this). And turns sun-lit green foliage a lighter and sometimes 
>sickly shade. I believe they have trees in the Netherlands, don't 
>they? Nathan and other Beneluxers, please confirm :-)
>
>All in all, the filters seem a better bet to me. Then again, *not* 
>using an IR filter might improve shadow gradations in existing-light 
>B&W
>
>--Peter

I've had a couple of shots with the 35/1.4 ASPH that had noticeably 
more flare with the filter on; a sort of large diffuse patch in the 
center of the image when the sun was just out of the frame. With the 
filter off it didn't happen. Sorry I can't show that, as I deleted 
the poorer picture immediately. Maybe I'll try to cause the problem 
again in a more controlled fashion.

In general, outdoor pictures seem OK for the most part with the 
filter off, but I usually leave it on unless I know that a) IR won't 
degrade the image and b) the filter might harm the image. B&W images 
seem readily adjustable whichever way I take them, and while filtered 
images should be less sharp, I haven't noticed enough of a difference 
to matter. So I take the pictures intended for B&W with or without 
filter. Usually, since I have the filters on for colour, the filters 
stay on for B&W.

Since I rarely am that prescient, I usually just leave the filter on 
when walking around. :-)

>Henning wrote:
>>and some folks may note that the captions on the photos are reversed
>>as to which pictures and data are with filter and which without.


-- 
    *            Henning J. Wulff
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